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/petsc/doc/manualpages/doctext/
H A Ddoctextcommon.txt13 memory region are strongly write-ordered. That is, the following operations\:
22 region `M` such that `A` "happens-before" `B`, where `A` uses `PetscDeviceContext` `X`
/petsc/src/binding/petsc4py/src/petsc4py/PETSc/
H A DDMDA.pyx75 The width of the ghost/halo region.
171 The width of the ghost/halo region.
556 """Return the ranges of the owned local region in each dimension.
578 """Return the ranges of the local region in each dimension, including ghost nodes.
623 """Return the lower left corner and the sizes of the owned local region.
628 tuple) and size of the local region (second tuple).
652 """Return the lower left corner and the size of the ghosted local region.
657 tuple) and size of the local region (second tuple).
1144 """Ranges of the local region in each dimension."""
1149 """Ranges of local region, including ghost nodes."""
[all …]
H A DDMStag.pyx84 The width of the ghost/halo region.
386 """Return starting element index and width of local region.
882 """The lower left corner and size of local region in each dimension."""
887 """The lower left corner and size of local region in each dimension."""
H A DSNES.pyx327 """Set the tolerance parameters used for the trust region.
334 The minimum allowed trust region size. Defaults to `CURRENT`.
336 The maximum allowed trust region size. Defaults to `CURRENT`.
338 The initial trust region size. Defaults to `CURRENT`.
354 """Return the tolerance parameters used for the trust region.
361 The minimum allowed trust region size.
363 The maximum allowed trust region size.
365 The initial trust region size.
380 """Set the update parameters used for the trust region.
413 """Return the update parameters used for the trust region.
H A DDM.pyx511 """Set an auxiliary vector for a specific region.
522 Indicate the region.
541 """Return an auxiliary vector for region.
550 Indicate the region.
/petsc/src/tao/leastsquares/tutorials/output/
H A Dcs1_view_lm.out5 Downhill trust region decrease factor:: 0.2
6 Uphill trust region increase factor:: 1.5
/petsc/doc/manual/
H A Dtao.md89 gradient, Newton with line search or trust region) but also can
559 Other stopping criteria include a minimum trust-region radius or a
863 Newton line search (`tao_nls`), Newton trust-region (`tao_ntr`),
864 and Newton trust-region line-search (`tao_ntl`)
869 trust-region methods will likely perform best. When a Hessian evaluation
881 for unconstrained optimization: line search (NLS), trust region (NTR), and trust
882 region with a line search (NTL). They are available via the TAO solvers
1190 of equation, a trust-region radius needs to be initialized and updated.
1191 This trust-region radius simultaneously limits the size of the step
1193 method. The method for initializing the trust-region radius is set with
[all …]
H A Dfe.md42 …region. The `PetscDS` contains a `PetscWeakForm` object that holds callback function pointers that…
H A Dstreams.md138 (each with a single NUMA region, so a total of two NUMA regions), a
162 … shows that for 28 threads, 12 are placed on NUMA region 1, and 16 are placed on the other NUMA re…
H A Dsnes.md24 core of the package, including both line search and trust region
260 and trust region methods. Also provided are several nonlinear Krylov
283 * - Trust region Newton
469 The trust region method in `SNES` for solving systems of nonlinear
472 set to control the variation of the trust region size during the
474 region radius, computed by
/petsc/doc/overview/
H A Dlinear_solve_table.md523 * - Nash Conjugate Gradient with trust region constraint
528 * - Conjugate Gradient with trust region constraint
533 * - Gould et al Conjugate Gradient with trust region constraint
538 * - Steinhaug Conjugate Gradient with trust region constraint
H A Dnonlinear_solve_table.md20 * - Newton's method with trust region
/petsc/src/tao/leastsquares/tutorials/matlab/
H A DProblemInitialize.m22 delta = 0.1; % Initial trust region radius
/petsc/src/snes/tests/output/
H A Dex1_2c_snes_tr_qn-same.out4 Trust region parameters:
H A Dex1_2c_snes_tr_qn-different.out4 Trust region parameters:
/petsc/src/snes/tutorials/output/
H A Dex2_4.out11 Trust region tolerance 1e-12
H A Dex2_2.out10 Trust region parameters:
H A Dex18_3.out3 Trust region parameters:
H A Dex18_2.out3 Trust region tolerance 1e-12
/petsc/doc/changes/
H A D2015.md84 -snes_eq_tr\_\<parameter_name> - nonlinear equations, trust region
87 minimization, trust region method Run program with -help for a
H A D322.md126 …lerances()` and `SNESNewtonTRSetUpdateParameters()` to programmatically set trust region parameters
H A D312.md179 positive since tiny trust region would indicate trouble, not
/petsc/doc/community/meetings/2023/
H A Dindex.md400 the two sub-domains of the plasma region and wall region and their coupling
508 PETSc the general-purpose nonlinear solver, Newton trust-region dogleg
509 Cauchy (NTRDC) and Newton trust-region (NTR) to demonstrate the
725 A planet's ionosphere is the region of its atmosphere where a fraction
733 altitude range of Earth's ionosphere called the "E region", electrons
744 self-consistently models instability growth and evolution in the E-region
755 self-consistently models instability growth and evolution in the E-region
830 communicator, allows individual threads in an OpenMP parallel region to use
832 program to use PETSc within a parallel region.
/petsc/src/dm/impls/plex/
H A Dplexgmsh.c1192 int snum, region, dim, tag; in GmshReadPhysicalNames() local
1196 snum = sscanf(line, "%d", &region); in GmshReadPhysicalNames()
1197 mesh->numRegions = region; in GmshReadPhysicalNames()
1200 for (region = 0; region < mesh->numRegions; ++region) { in GmshReadPhysicalNames()
1212 mesh->regionDims[region] = dim; in GmshReadPhysicalNames()
1213 mesh->regionTags[region] = tag; in GmshReadPhysicalNames()
1214 PetscCall(PetscStrallocpy(name, &mesh->regionNames[region])); in GmshReadPhysicalNames()
/petsc/src/binding/petsc4py/docs/source/
H A Doverview.rst82 region techniques with a single interface. Employs by default

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